Two dimensional hall MHD modeling of a Plasma Opening Switch with density inhomogeneities

The results of two-dimensional numerical modeling of the Plasma Opening Switch in the MHD framework with Hall effect are presented. In the simulations we used enhanced Hall diffusion coefficient. Recent experiments justify application of this approach. The result of the modeling also correlates better with the experiment than in the case of classical diffusion coefficient. Numerically generated pictures propose a switching scenario in which the translation between conduction and opening phases can be explained by an abrupt “switching on” and further domination of the Hall effect at the end of the conduction phase.